HP LaserJet 1100 - Engine Control Unit (ECU);Power System

EN Functional Overview
: Engine Control Unit (ECU)/power system
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Engine Control Unit (ECU)/power system
The Engine Control Unit (ECU) coordinates all print engine activities, drives the laser,
and coordinates print data from the formatter with the image formation process. The
ECU also includes power supply and distribution circuitry. The ECU controls the
following systems and functions:
• Printer engine control
• printer laser/scanner drive
• paper motion monitoring and control
• motor
•
Power system
• AC power distribution
• DC power distribution
• overvoltage/undervoltage protection
• high-voltage power distribution
:
Figure 3-2 ECU loads